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Homework Help: BJT Differential amplifier

  1. Mar 22, 2014 #1
    I don't understand why Q1 is on and Q2 is off.

    Can someone explain me the reason for that?

    Thanks in advance.

    Attached Files:

  2. jcsd
  3. Mar 23, 2014 #2

    rude man

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    Homework Helper
    Gold Member

    The base of Q1 is at 1V. What is the emitter of Q1 at?
    Then, what is Vbe for Q2? Can it be on?
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